New additions to Omphalotaceae (Agaricales, Basidiomycota): two new rhizomorph-forming species from China

Authors: Li, Ji-Peng Country: People's Republic of China DOI: 10.3897/mycokeys.131.184214 Published: Jan. 1, 2026 Source: MycoKeys OpenAlex: View in OpenAlex

Collection: Pensoft Publishers

Keywords: Gymnopus sect. Androsacei · Topics: Mycorrhizal Fungi and Plant Interactions, Fungal Biology and Applications, Lichen and fungal ecology

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Two new rhizomorph-forming species within the family Omphalotaceae, Gymnopus fuscostipes sp. nov. and Pseudomarasmius brunneodiscus sp. nov., are proposed based on morpho-molecular evidence. Both species are characterized by marasmioid basidiomata, brownish pileus, and black rhizomorphs. Detailed morphological descriptions, color photos, and illustrations are presented herein, as well as comparisons with closely related species.

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